[Minor] Remove unused macros

src/plugins/fuzzy_check.c

 #include <math.h>
 
 #define DEFAULT_SYMBOL "R_FUZZY_HASH"
-#define DEFAULT_UPSTREAM_ERROR_TIME 10
-#define DEFAULT_UPSTREAM_DEAD_TIME 300
-#define DEFAULT_UPSTREAM_MAXERRORS 10
 
 #define DEFAULT_IO_TIMEOUT 500
 #define DEFAULT_RETRANSMITS 3